heathy opie and authorities are leading the search aided by the u.s. kenya and others. the airline has announced its grounding at seven thirty seven max fleet and other countries are following suit the same boeing model crashed just five months ago in indonesia. as investigators look into the airplane's flight recorders people around the world are hoping for answers to why their loved ones didn't make it home. and for more on this now i'd like to bring in aviation commentator julian bray he joins us tonight from cambridge in the u.k. mr bray it's good to have you on the show the boeing seven thirty seven max eight version it be is considered the work course for many airlines and it's already received a lot of attention let me ask you would we be this concerned if we were looking at two crashes involving a different model or an air bus manufacturer aircraft i mean is there something special about the about what we're looking at with this boeing seven thirty seven max. very interesting question because this particular aircraft was actually breaking all the rules it is in